a strict high school gym teacher died, a man known for lectures young students about their grooming and personal appearance, and what was his name? leonard skinner. sound familiar? southern rock band lynyrd skynyrd. ♪ sweet home alabama >> reporter: well, it turns out the band's lead singer was sent to the principal's office by skinner, because his hair was too long. years later, the gym teacher reportedly laughed about his student's life-long revenge. >>> and still ahead, we at "world news" are going to go home, to bring back great ideas about what makes a difference in this tough economy, and we want your ideas, too. ♪ i love my grandma. i love you grandma. grandma just makes me happy. ♪ to know, know, know you grandma is the bestest. the total package. grandpa's cooooooooool. way cool. ♪ grandpa spoils me rotten. ♪ to know, know, know you ♪ is to love... some people call us frick and frack. we do finger painting. this is how grandpa and i roll. ♪ and i do [ pins fall ] grandma's my best friend. my best friend ever. my best friend ever. ♪ [ laughing ] [ boy laughs ] â™